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Full-Text Articles in Physical Sciences and Mathematics

Monthly Report On The State Of Rivers 1984, Albert Kuo Jan 1984

Monthly Report On The State Of Rivers 1984, Albert Kuo

Reports

Chiefly graphs showing monthly salinity, temperature, dissolved oxygen distributions at slackwater for the James, York, Pamunkey, and Rappahannock Rivers.

1984: April, May, June, July, August, September, October


Resin Acid Compounds In A Kraft Pulp And Paper Mill Effluent And Their Distribution In Bottom Sediments Near The Outfall, Manida Unkulvasapaul Jan 1984

Resin Acid Compounds In A Kraft Pulp And Paper Mill Effluent And Their Distribution In Bottom Sediments Near The Outfall, Manida Unkulvasapaul

Dissertations, Theses, and Masters Projects

Kraft pulp and paper mill effluents (KPPME) collected on three occasions were analyzed for resin acids, aliphatic hydrocarbons, and aromatic hydrocarbons. The maximum total concentrations of these compounds found in secondary effluents were 8 mg/L resin acids, 4.0 mg/L resolved aliphatic hydrocarbons, and 0.2 mg/L resolved aromatic hydrocarbons. Abietic acid and dehydroabietic acid were the two major components in resin acid fractions and were responsible for > 70% of the total concentration. Analyses of estuarine water and sediments collected from the outfall and nearby areas showed that dehydroabietic acid was the major resin acid in either water or sediment. Concentrations of …


Evaluation Of Carbon-14 Uptake Algal Toxicity Assay And Its Application In Field Assessment Of Tributyltin Chloride And Chlorinated Sewage Toxicities, Soon Lin Ho Jan 1984

Evaluation Of Carbon-14 Uptake Algal Toxicity Assay And Its Application In Field Assessment Of Tributyltin Chloride And Chlorinated Sewage Toxicities, Soon Lin Ho

Dissertations, Theses, and Masters Projects

No abstract provided.


Vegetative Erosion Control Project : Final Report, C. Scott Hardaway Jr., George Thomas, Andrew W. Zacherle, B. Keith Fowler Jan 1984

Vegetative Erosion Control Project : Final Report, C. Scott Hardaway Jr., George Thomas, Andrew W. Zacherle, B. Keith Fowler

Reports

The Vegetative Erosion Control (VEC) project is a four-year study with coordinated efforts by the Virginia Soil and Water Conservation Commmission (VS&WCC) through their Shoreline Erosion Advisory Service (SEAS), the Soil Conservation Service (SCS) and the Virginia Institute of Marine Science (VIMS). Initial funding was appropriated in 1980 following the recommendation of the Coastal Erosion Abatement Commission and contracted out to the SCS and VIMS by the VS&WCC, the lead agency. (...)

The purpose of the VEC project is to supplement previous research with detailed site analysis of the early stages of marsh development and to more precisely define the …


Kepone Uptake: A Comparison Of Field And Laboratory Data, Micheal E. Bender, Robert J. Huggett, Harold D. Sloane Jan 1984

Kepone Uptake: A Comparison Of Field And Laboratory Data, Micheal E. Bender, Robert J. Huggett, Harold D. Sloane

VIMS Books and Book Chapters

The ability to predict the environmental fate and effects of pollutants in the marine environmenits of utmost importance in assessing the hazards posed by a compound's use and/or disposal. Most commonly utilized methods to establish potential environmental effects have involved an assessment with bioassays of a compound's acute and chronic toxicity. For compounds that have the ability to bioaccumulate, the potential dangers from this process must also be determined. A "first cut" estimate can be made by determining the partition coefficients between an organic solvent, usually n-octanol, and water. If this coefficient exceeds 25,000, EPA requires a report of the …


Oyster Spatfall In Virginia Rivers: 1983 Annual Summary, James Whitcomb Jan 1984

Oyster Spatfall In Virginia Rivers: 1983 Annual Summary, James Whitcomb

Reports

The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made on oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells are counted each week of ~:he spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period tile strikes will occur. A moderate or heavy strike on shellstrings usually indicates a significant strike on exposed bottom clutch. This is especially true for clutch planted a …


Virginia Institute Of Marine Science Plan In Support Of The Chesapeake Bay Research And Submerged Aquatic Vegetation Initiatives Of The Commonwealth Of Virginia, Virginia Institute Of Marine Science Jan 1984

Virginia Institute Of Marine Science Plan In Support Of The Chesapeake Bay Research And Submerged Aquatic Vegetation Initiatives Of The Commonwealth Of Virginia, Virginia Institute Of Marine Science

Reports

No abstract provided.


A Study Of Long-Term Environmental Fluctuations In The Chesapeake Bay Region, Reidar S. Leinebo, David A. Evans Jan 1984

A Study Of Long-Term Environmental Fluctuations In The Chesapeake Bay Region, Reidar S. Leinebo, David A. Evans

Reports

A time series of monthly mean values of temperature measurements (1952-1981) for Gloucester Point, Virginia, U.S.A. and Vardo In Northern Norway are described and the results of an eigenfunction analysis are presented. Seasonal, year-to-year and long term changes of salinlty measurements (1960-1977) for Gloucester Point and monthly mean stream-flow values (1951-1982) are also described. Commerclal Catch data from Virginia for menhaden, bluefish and Atlantic croaker shows reasonable correlation with cllmatlc changes.

The time around 1965 was a cold period with high sallnlty and low streamflow. The same period was also cold In Northern Norway (Europe). Around 1974 was a period …


Trace Organic Analyses Of Effluent Waters From A Model Slurry Pipeline Carrying Appalachian Bituminous Coal : Final Report, P. O. Defur, W. G. Macintyre Jan 1984

Trace Organic Analyses Of Effluent Waters From A Model Slurry Pipeline Carrying Appalachian Bituminous Coal : Final Report, P. O. Defur, W. G. Macintyre

Reports

Effluent waters from a model coal slurry pipeline have been analyzed for trace dissolved organic compounds. The model pipeline was operated under conditions simulating those proposed for a slurry pipeline from the region of Bristol to Hampton Roads, Virginia. Acidic, neutral and basic organic compounds in the separated waters were determined. Concentrations of individual compounds detected were generally less than 0.5 ppb and never exceeded 6 ppb. Adsorption experiments using coal slurry sorbents indicate that coal particles act as sorbing surfaces under coal slurry pipeline transport conditions.


A Method For Evaluating The Long-Term, Cumulative Impacts Of Tidal Marsh Alterations: The York River System, A Case Study, Andrew W. Zacherle Jan 1984

A Method For Evaluating The Long-Term, Cumulative Impacts Of Tidal Marsh Alterations: The York River System, A Case Study, Andrew W. Zacherle

Dissertations, Theses, and Masters Projects

No abstract provided.